Confirmed upgrades are valid only for the specific flight and date shown at the time of your successful bid and are non-transferable. The policies regarding subsequent itinerary changes and refunds are outlined below based on the situation:
Voluntary Changes: If you choose to change your flight, it indicates that you voluntarily forfeit your upgrade, and the upgrade amount will not be refunded. However, to request a refund for any paid taxes, please contact the EVA Air Customer Service Center. Additionally, the fare rules for itinerary changes will remain the same as those of your original ticket prior to the upgrade.
Involuntary Changes: If you are unable to use the bid upgrade due to involuntary factors, your bid amount will be fully refunded. For refund applications arising from involuntary reasons, please contact the EVA Air Customer Service Center.